`oppersma.nl`

DNSSEC	🔒 Signed (DS record present)
A	2a02:4a8:ac24:112::100:136^{🇨🇿 ACTIVE24-AS2a02:4a8::/32 CZ-ACTIVE24-NET6}
		PTR	`stan.globenet.cz`
A	81.95.100.136^{🇨🇿 ACTIVE24-AS81.95.96.0/20 CZ-ACTIVE24-NET1}
NS	`ns1.websupport.cz` ⭐
		A	2a10:bbc0::11^{🇨🇿 ACTIVE24-AS2a10:bbc0::/32}
			PTR	`ns1.websupport.eu`
		A	45.10.97.11^{🇨🇿 ACTIVE24-AS45.10.97.0/24}
			PTR	`ns1.websupport.eu`
NS	`ns2.websupport.cz`
		A	2a02:250:3::12^{🇸🇪 ACTIVE24-AS2a02:250:3::/48}
			PTR	`ns2.websupport.eu`
		A	185.71.159.12^{🇸🇪 ACTIVE24-AS185.71.159.0/24}
			PTR	`ns2.websupport.eu`
NS	`ns3.websupport.eu`
		A	2a10:bbc0::13^{🇨🇿 ACTIVE24-AS2a10:bbc0::/32}
			PTR	`ns3.websupport.eu`
		A	45.10.97.13^{🇨🇿 ACTIVE24-AS45.10.97.0/24}
			PTR	`ns3.websupport.eu`
MX	`mailin1.oppersma.nl` ⭐
		A	2a00:4b40:aaaa:2101:45:13:137:112^{🇸🇰 WEBSUPPORT-SRO-SK-AS2a00:4b40::/32}
		A	45.13.137.113^{🇸🇰 WEBSUPPORT-SRO-SK-AS45.13.137.0/24}
			PTR	`m1-u6-mx.websupport.hu`
MX	`mailin2.oppersma.nl`⁽¹⁰⁰⁾
		A	2a00:4b40:aaaa:2101:45:13:137:104^{🇸🇰 WEBSUPPORT-SRO-SK-AS2a00:4b40::/32}
			PTR	`mx20.websupport.cz`
		A	45.13.137.110^{🇸🇰 WEBSUPPORT-SRO-SK-AS45.13.137.0/24}
			PTR	`m1-u6-mx.websupport.sk`
SOA	`ns1.websupport.cz`admin@websupport.cz serial=1763075801

`nl`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns1.dns.nl` ⭐
	NS	`ns3.dns.nl`
	NS	`ns4.dns.nl`
	TXT	`nl zone update: 2026-04-03 01:00:01 +0000 (EPOCH 1775178001)`
	SOA	`ns1.dns.nl`dns@sidn.nl 2026-04-03 #2

Subdomains

mailin2.oppersma.nl

mailin1.oppersma.nl

Same first word

oppersma.com

oppersma.nl

Similar names

DNS History

21 records (7 active, 14 former)

○NSalfa.ns.active24.cz2016-02-27 → 2017-11-02 · 5 obs

○ 2015-12-03 13:57:36
● 2016-02-27 18:25:26
● 2017-11-02 10:52:40
○ 2026-03-26 13:51:42
○ 2026-04-03 01:36:42

○NSans1.active24.com2015-08-19 → 2015-12-03 · 4 obs

● 2015-08-19 06:16:54
● 2015-12-03 13:57:36
○ 2016-02-27 18:25:26
○ 2026-04-03 01:36:42

○NSans2.active24.com2015-08-19 → 2015-12-03 · 4 obs

● 2015-08-19 06:16:54
● 2015-12-03 13:57:36
○ 2016-02-27 18:25:26
○ 2026-04-03 01:36:42

○NSans3.active24.com2015-08-19 → 2015-12-03 · 4 obs

● 2015-08-19 06:16:54
● 2015-12-03 13:57:36
○ 2016-02-27 18:25:26
○ 2026-04-03 01:36:42

○NSbeta.ns.active24.cz2016-02-27 → 2017-11-02 · 5 obs

○ 2015-12-03 13:57:36
● 2016-02-27 18:25:26
● 2017-11-02 10:52:40
○ 2026-03-26 13:51:42
○ 2026-04-03 01:36:42

○NSgama.ns.active24.sk2016-02-27 → 2017-11-02 · 5 obs

○ 2015-12-03 13:57:36
● 2016-02-27 18:25:26
● 2017-11-02 10:52:40
○ 2026-03-26 13:51:42
○ 2026-04-03 01:36:42

●NSns1.websupport.cz2026-03-26 → 2026-04-03 · 3 obs

○ 2017-11-02 10:52:40
● 2026-03-26 13:51:42
● 2026-04-03 01:36:42

●NSns2.websupport.cz2026-03-26 → 2026-04-03 · 3 obs

○ 2017-11-02 10:52:40
● 2026-03-26 13:51:42
● 2026-04-03 01:36:42

●NSns3.websupport.eu2026-03-26 → 2026-04-03 · 3 obs

○ 2017-11-02 10:52:40
● 2026-03-26 13:51:42
● 2026-04-03 01:36:42

○MXho01-ex01-mail.active24.com2015-08-19 → 2015-12-03 · 4 obs

● 2015-08-19 06:16:54
● 2015-12-03 13:57:36
○ 2016-02-27 18:25:26
○ 2026-04-03 01:36:42

○MXin.smtp.cz2016-02-27 → 2016-09-09 · 5 obs

○ 2015-12-03 13:57:36
● 2016-02-27 18:25:26
● 2016-09-09 07:15:56
○ 2017-11-02 10:52:40
○ 2026-04-03 01:36:42

●MXmailin1.oppersma.nl2026-03-26 → 2026-04-03 · 3 obs

○ 2017-11-02 10:52:40
● 2026-03-26 13:51:42
● 2026-04-03 01:36:42

●MXmailin2.oppersma.nl2026-03-26 → 2026-04-03 · 3 obs

○ 2017-11-02 10:52:40
● 2026-03-26 13:51:42
● 2026-04-03 01:36:42

○MXmx.smtp.cz2016-02-27 → 2016-09-09 · 5 obs

○ 2015-12-03 13:57:36
● 2016-02-27 18:25:26
● 2016-09-09 07:15:56
○ 2017-11-02 10:52:40
○ 2026-04-03 01:36:42

○MXmx1.active24.com2017-11-02 → 2017-11-02 · 4 obs

○ 2016-09-09 07:15:56
● 2017-11-02 10:52:40
○ 2026-03-26 13:51:42
○ 2026-04-03 01:36:42

○MXmx2.active24.com2017-11-02 → 2017-11-02 · 4 obs

○ 2016-09-09 07:15:56
● 2017-11-02 10:52:40
○ 2026-03-26 13:51:42
○ 2026-04-03 01:36:42

○MXmx4.active24.com2015-08-19 → 2015-12-03 · 4 obs

● 2015-08-19 06:16:54
● 2015-12-03 13:57:36
○ 2016-02-27 18:25:26
○ 2026-04-03 01:36:42

○A213.188.134.2152015-08-19 → 2015-08-19 · 3 obs

● 2015-08-19 06:16:54
○ 2015-12-03 13:57:36
○ 2026-04-03 01:36:42

○A213.188.138.702015-12-03 → 2016-02-27 · 5 obs

○ 2015-08-19 06:16:54
● 2015-12-03 13:57:36
● 2016-02-27 18:25:26
○ 2016-09-09 07:15:56
○ 2026-04-03 01:36:42

●A2a02:4a8:ac24:112::100:1362016-09-09 → 2026-04-03 · 3 obs

○ 2016-02-27 18:25:26
● 2016-09-09 07:15:56
● 2026-04-03 01:36:42

●A81.95.100.1362016-09-09 → 2026-04-03 · 3 obs

○ 2016-02-27 18:25:26
● 2016-09-09 07:15:56
● 2026-04-03 01:36:42

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
nl	ns3.dns.nl, ns4.dns.nl, ns1.dns.nl	-
oppersma.nl	ns1.websupport.cz, ns2.websupport.cz, ns3.websupport.eu	-

✅ Authoritative Response

Server:45.10.97.11

NS records: ns1.websupport.cz, ns2.websupport.cz, ns3.websupport.eu

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 807ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`81.95.100.136`
AAAA	1	`2a02:4a8:ac24:112::100:136`
NS	3	`ns1.websupport.cz, ns2.websupport.cz...`
MX	2	`mailin1.oppersma.nl (pri: 10), mailin2.oppersma.nl (pri: 100)`
SOA	1	`ns1.websupport.cz admin.websupport.cz`

Analysis

Hierarchy

oppersma.nl is parent of mailin2.oppersma.nl and mailin1.oppersma.nl.

IP Addresses

oppersma.nl resolves to two IPs: 2a02:4a8:ac24:112::100:136 and 81.95.100.136.

other host names for instance kharboot.com, www.b-a-c.nl, skycam.nl, skooba.co.uk and avanbussel.nl share IP numbers with oppersma.nl.

Name Servers

oppersma.nl is delegated to three name servers: ns1.websupport.cz, ns2.websupport.cz and ns3.websupport.eu.

oppersma.nl at least partially shares name servers with other domains, for instance kavale.cz, grantica.net, nyylo.cz, iremix.cz and dialorg.cz.

These name servers are commonly used with ns1.websupport.sk, ns2.websupport.sk and ns3.websupport.sk.

Host names with two IP numbers:

Host ns1.websupport.cz points to 2a10:bbc0::11 and 45.10.97.11.

Host ns2.websupport.cz points to 2a02:250:3::12 and 185.71.159.12.

Host ns3.websupport.eu points to 2a10:bbc0::13 and 45.10.97.13.

Mail Servers

oppersma.nl is handled by two mail servers: mailin1.oppersma.nl and mailin2.oppersma.nl.

Host names with two IP numbers:

mailin1.oppersma.nl points to 2a00:4b40:aaaa:2101:45:13:137:112 and 45.13.137.113

mailin2.oppersma.nl points to 2a00:4b40:aaaa:2101:45:13:137:104 and 45.13.137.110

oppersma.nl - robtex.com

oppersma.nl

nl

Subdomains

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

Hierarchy

IP Addresses

Name Servers

Mail Servers

`oppersma.nl`

`nl`